Name: 
 

Balance in the Ecosystem - Practice Exercise 6-7 - Accommodation and Adaptation



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

Adaptations in a species over time are caused by _____ 
a.
natural selection.
b.
temperature.
c.
food. 
 

 2. 

Behavioral adaptations  ________ 
a.
are physical characteristics of an animal or plant. 
b.
are the things animals do to survive.
c.
are only found in mammals.
 

 3. 

Structural adaptations 
a.
are the way an organism behaves. 
b.
happen very quickly. 
c.
are physical characteristics of an organism.
 

 4. 

The largest North American rodent is the 
a.
koala. 
b.
beaver.
c.
moose. 
 

 5. 

Opossums _____
a.
hibernate in the winter.
b.
play dead when threatened.
c.
are rodents.
 



 
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